General form of registration statement for all companies including face-amount certificate companies

Revenues - Summary of Cumulative Adjustment Made to Consolidated Income Statement due to Changes in Accounting for Incremental Costs of Obtaining Contracts with Customers (Detail)

v3.21.2
Revenues - Summary of Cumulative Adjustment Made to Consolidated Income Statement due to Changes in Accounting for Incremental Costs of Obtaining Contracts with Customers (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Revenues [Abstract]        
Revenues $ 14,659 $ 9,411 $ 21,135 $ 13,713
Cost of Revenue [Abstract]        
Selling, general and administrative 17,305 14,063 28,606 33,862
Operating loss (39,299) (20,129) (41,395) (46,248)
Service [Member]        
Revenues [Abstract]        
Revenues 11,116 7,726 18,737 13,325
Cost of Revenue [Abstract]        
Costs, excluding depreciation and amortization 8,550 6,440 13,331 11,098
Product [Member]        
Revenues [Abstract]        
Revenues 3,543 1,685 2,398 388
Cost of Revenue [Abstract]        
Costs, excluding depreciation and amortization $ 3,367 $ 5,184 10,535 $ 399
ASC 605 [Member]        
Cost of Revenue [Abstract]        
Selling, general and administrative     28,472  
Operating loss     (41,634)  
ASC 605 [Member] | Service [Member]        
Revenues [Abstract]        
Revenues     18,737  
Cost of Revenue [Abstract]        
Costs, excluding depreciation and amortization     13,331  
ASC 605 [Member] | Product [Member]        
Revenues [Abstract]        
Revenues     2,025  
Cost of Revenue [Abstract]        
Costs, excluding depreciation and amortization     $ 10,535